Home / 13,147,479.72-18,155,155.68-8,194,374.29

Finding the Fourth Proportional to 13,147,479.72, 18,155,155.68 and 8,194,374.29

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Solution

The fourth proportional to 13,147,479.72, 18,155,155.68 and 8,194,374.29 is: 11,315,487.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,479.72 : 18,155,155.68 = 8,194,374.29 : x
  2. Step 2: Convert to fraction form
    13,147,479.72/18,155,155.68 = 8,194,374.29/x
  3. Step 3: Cross multiply
    13,147,479.72x = 18,155,155.68 × 8,194,374.29
  4. Step 4: Simplify right side
    13,147,479.72x = 148,770,140,980,527.38
  5. Step 5: Solve for x
    x = 148,770,140,980,527.38/13,147,479.72
  6. Step 6: Final answer
    x = 11,315,487.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.